问题详情

Brazilian fixed 【C1】______ operator Brasil Telecom is betting that its newly 【C2】______ Brt GSM mobile arm will obtain a high degree of customer 【C3】______ and maintain a chum rate of less than 12%, half the industry average, company executives told press on Tuesday. Brasil Telecom GSM is launching a 【C4】______ strategy, known as Pula-Pula, which 【C5】______ every other month of service free until 2010 to the first 400,000 customers.
"The 【C6】______ approach of Pula Pula will 【C7】______ us to customer loyalty," Brt GSM general director Ricardo Sacramento said.
The company 【C8】______ 500,000 users by year-end 2004, which is higher than the company"s 【C9】______ estimate of 400,000, and 1.7 million users by year-end 2005.
"We have two 【C10】______ in Brasilia and Rio Grande do Sul, but other states in the mid-west will give good results. We have 【C11】______ expectations," Sacramento said.
The company invested US $ 350mn in its mobile 【C12】______ in 2004 but has not yet 【C13】______ the amount of expected investment during 2005.
"Considering that we will have 82% 【C14】______ of our service area by year-end 2004, the investment will be minimal and will be based on how the market 【C15】______ ," Brasil Telecom president Carla Cico told reporters.
Brasil Telecom expects a 2%-2.5% reduction of Ebidta margin in the first 12 months of launching their mobile service but expects the mobile unit to post positive Ebitda within 18-20 months of start-up.
【C1】______
A．phone
B．telephone
C．line
D．telephony请帮忙给出正确答案和分析，谢谢！